Patents by Inventor S. N. Thanos

S. N. Thanos has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Filter using a state-variable biquadratic transfer function circuit
    Patent number: 4246542
    Abstract: A second order section of an electronic filter comprises three cascaded amplifier stages and a compensating amplifier stage coupled between the first and second amplifier stages. The compensating stage introduces a leading phase shift at high frequencies so that the normalized transfer function of the circuit, for different frequencies, is substantially identical.
    Type: Grant
    Filed: May 8, 1979
    Date of Patent: January 20, 1981
    Assignee: Rockland Systems Corporation
    Inventor: S. N. Thanos